Color photographic recording material

US4952487A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Gunter Renner · Bensberg, DE
• Johannes Sobel · Leverkusen, DE
• Klaus Wagner · Bensberg, DE
• Gunter Junkers · Leverkusen, DE
• Friedhelm Sommer · Leverkusen, DE

Key dates

• Filing date: Dec 28, 1989
• Grant date: Aug 28, 1990
• Expiry date: Dec 28, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/3885
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In combination with oil formers of the alkylphenol type, 3-anilinopyrazolones show absorption maxima displaced by about 8 to 12 nm towards longer wavelengths and a blue secondary absorption further displaced towards the UV range and, hence, a reduced yellow secondary density.